topic Fast Flash Programming via Bootloader in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Fast-Flash-Programming-via-Bootloader/m-p/523733#M6369 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by wmues on Tue Nov 13 04:22:26 MST 2012</STRONG><BR /><SPAN>As you might know, the boot rom in LPC177x/8x is limited to 56K baudrate, running with the 12MHz internal oscillator.</SPAN><BR /><BR /><SPAN>In production, this might take a big amount of time for programming the internal flash.</SPAN><BR /><BR /><SPAN>However, it is possible to load a small programm into the internal RAM of the CPU which sets the baudrate</SPAN><BR /><SPAN>to a higher value.</SPAN><BR /><BR /><SPAN>The appended program boot_setbaud.c sets the baudrate to 115K. It is position independent.</SPAN><BR /><BR /><SPAN>You have to use the commands W(rite), U(nlock) and (G)o. The return string of</SPAN><BR /><SPAN>the G(o) command is crippled because of the switched baudrate. After this, you can</SPAN><BR /><SPAN>switch the PC to 115K.</SPAN><BR /><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-338099">boot_setbaud.tar.gz</A></STRONG></P><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-338099">boot_setbaud.c.zip</A></STRONG></P></BODY></HTML> Wed, 15 Jun 2016 18:03:36 GMT lpcware 2016-06-15T18:03:36Z Fast Flash Programming via Bootloader https://community.nxp.com/t5/LPC-Microcontrollers/Fast-Flash-Programming-via-Bootloader/m-p/523733#M6369 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by wmues on Tue Nov 13 04:22:26 MST 2012</STRONG><BR /><SPAN>As you might know, the boot rom in LPC177x/8x is limited to 56K baudrate, running with the 12MHz internal oscillator.</SPAN><BR /><BR /><SPAN>In production, this might take a big amount of time for programming the internal flash.</SPAN><BR /><BR /><SPAN>However, it is possible to load a small programm into the internal RAM of the CPU which sets the baudrate</SPAN><BR /><SPAN>to a higher value.</SPAN><BR /><BR /><SPAN>The appended program boot_setbaud.c sets the baudrate to 115K. It is position independent.</SPAN><BR /><BR /><SPAN>You have to use the commands W(rite), U(nlock) and (G)o. The return string of</SPAN><BR /><SPAN>the G(o) command is crippled because of the switched baudrate. After this, you can</SPAN><BR /><SPAN>switch the PC to 115K.</SPAN><BR /><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-338099">boot_setbaud.tar.gz</A></STRONG></P><P><STRONG>Original Attachment has been moved to: <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-338099">boot_setbaud.c.zip</A></STRONG></P></BODY></HTML> Wed, 15 Jun 2016 18:03:36 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Fast-Flash-Programming-via-Bootloader/m-p/523733#M6369 lpcware 2016-06-15T18:03:36Z